Ollech & Wajs Chonographe PrecisionvsSeiko Prospex Speedtimer

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Chonographe Precision
Ollech & WajsChonographe Precision

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Prospex Speedtimer
SeikoProspex Speedtimer

MSRP $750

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Buy from Seiko Used on eBay

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Ollech & Wajs Chonographe Precision at true scale

Chonographe Precision

Seiko Prospex Speedtimer at true scale

Prospex Speedtimer

Diameter

38mm

41.4mm

Lug-to-Lug

n/a

45.9mm

Thickness

14.2mm

13mm

lowest

Water Resistance

50m

100m

highest

MSRP

n/a

$750

Movement

Valjoux 7733

Seiko V192

Case

5 specs
Diameter
38mm
41.4mm
Thickness
14.2mm
13mm
Lug-to-Lug
n/a
45.9mm
Lug Width
n/a
21mm
Water Resistance
50m
100m

Crystal & Dial

5 specs
Crystal
n/a
Sapphire
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
White
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Valjoux 7733
Seiko V192
Type
Manual
Quartz

Pricing

1 specs
MSRP
n/a
$750
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